JPH1069939A - Connector and waterproof connector device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a waterproof connector with its superior waterproof property capable of being densely mounted by pouring a potting resin on a circuit board in a case, orientating a receiver port, and forming a groove outside of the receiver port to form a waterproof wall. SOLUTION: An electronic device 1 is oriented with a receiver port 7 upward, and a lead pin 18 is plugged into a through hole 14 of a circuit board 2 and mounted. A potting resin 5 is poured in a space upward of the board 2 surrounded by a case 4 and a connector 3 and cured. A waterproof wall 10 is formed for this connector 3, therefore, the potting resin 5 is stopped outside of the waterproof wall 10 and never invades into a groove 9. Thereby, an engaging wall 12 is plugged in the groove 9 simultaneously when a coupler main body part 6a is plugged in a connector part 3a. Further, a waterproof rubber ring 15 mounted in an engaging groove 11 is intimately abutted with a top face of the connector part 3a, and a sealing function between the connector part 3a and the coupler main body part 6a is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for electronic equipment waterproofed with a potting resin, and a connector device using the connector.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view schematically showing a main part of an electronic apparatus using a conventional connector structure. In the electronic device 51, a connector 53 is attached to one end of a circuit board 52, and the connector 53 is disposed in a case 54. Thereafter, a potting resin 55 is placed in a space above the circuit board 52 surrounded by the case 54 and the connector 53. And the circuit board 52 is covered with the potting resin 55. The lead pin 56 has a portion extending outward from the back surface of the connector main body and is bent downward at a substantially right angle in the middle, and this bent tip portion is inserted into a through hole (not shown) of the circuit board 52. A pin which is generally called a “right angle pin” which is attached by being fixed by soldering is used.

FIG. 4 is a partially cutaway perspective view of a conventional device using another connector. This device comprises a connector 61 and a coupler 71. Connector 61
Has a connector body 63 having a receiving port 62 on the upper surface and having a hollow inside, and has a structure in which a lead pin 64 is attached through a bottom wall 63a of the connector body 63. In addition, a straight pin that extends straight is used as the lead pin 64 here. In addition,
Reference numeral 65 denotes a waterproof rubber laid on the bottom wall 63a.

On the other hand, the coupler 71 is formed in such a size that it can be inserted through the receiving opening 62 of the connector body 63, and at a position corresponding to the lead pin 64, a contact portion for contacting the lead pin 64 to establish electrical conduction is provided. 72 are provided. A harness 73 is connected to each contact portion 72.

In this connector device, a receiving pin 62 is directed upward, and a lead pin 64 extending from the rear side is provided.
Into a through hole (not shown) of the circuit board 68,
Thereafter, the circuit board 68 is fixed by soldering. Further, a coupler 71 is inserted into the connector main body 63 attached to the circuit board 68 from the receiving port 62 and connected thereto.

[0006]

However, in the conventional structure shown in FIG. 3, the rear surface (the bottom wall 6) of the connector main body 63 is not provided.
3a) The lead pin 56 extending outwardly is bent downward at a substantially right angle in the middle, and the bent end is inserted into a through hole of the circuit board 52 and fixed by soldering. Therefore, a step of bending the lead pin 56 at a substantially right angle is required, and the length of the lead pin 56 is increased, so that a large amount of material is used and the cost increases. Further, the circuit board 52
Even when mounted on the upper side, since the lead pins 56 are extended from the back surface of the connector main body, there is a problem in that the arrangement method causes a useless portion on the circuit board 52, hinders high-density mounting and hinders miniaturization. There is.

On the other hand, in the conventional structure shown in FIG. 4, the receiving port 62 faces upward, and the coupler 71 is inserted into the receiving port 62 from above. For this reason, there has been a problem that water or the like easily enters from the space between the connector 61 and the coupler 71 at the receiving port 62, and a sufficient waterproof effect cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a connector which is excellent in waterproofness and which can be mounted at high density, and a waterproof connector device using the connector. It is made possible.

[0009]

In order to achieve the above object, the present invention is characterized by adopting the following technical means as a connector. That is, in a connector for an electronic device in which a resin material is poured onto the board in the case after being mounted on a circuit board and incorporated in a case,
A structure in which a waterproof wall that is attached to the circuit board with the receiving port facing upward and that defines a fitting groove outside the receiving port is provided around the outside of the receiving port. It is. According to this, even if the resin material is poured into the case, the resin material can be prevented from entering the inside of the connector by the waterproof wall. Further, when rainwater or the like intrudes over the waterproof wall, it is received by the fitting groove, so that it is prevented from entering the inside where the lead pin is provided through the receiving port. Furthermore, since the resin material is prevented from entering and waterproofing is achieved, a straight connector that allows the lead pins extending straight from the bottom with the receiving port on the top to be directly attached to the circuit board is adopted, reducing the cost of lead pins and mounting It is possible to increase the density at the time.

In order to achieve the above object, the present invention is characterized in that the connector device employs the following technical means. That is, in a waterproof connector device for electronic equipment in which a resin is poured onto the board in the case after being mounted on a circuit board and incorporated in a case, the circuit board with a receiving port facing upward. And a connector provided around a waterproof wall defining a fitting groove outside the receiving port, and a waterproof plug inserted and fitted into the fitting groove of the connector. And a coupler provided so as to extend around the wall outside the connecting portion inserted into the receiving port of the connector. According to this, also on the coupler side attached to the connector, a fitting wall and a fitting groove are provided, and at the time of insertion and coupling, the coupler-side fitting wall is fitted into the connector-side fitting groove, By fitting the connector-side waterproof wall into the coupler-side fitting groove, waterproofing at the joint portion can be reliably obtained.

[0011]

1 and 2 show a main part of an electronic apparatus as an embodiment of the present invention. FIG. 1 schematically shows a main part configuration in a connector device portion of the apparatus. FIG. 2 is a perspective view showing a part of the device. 1 and 2, the electronic device 1 includes:
While attaching the connector 3 to one end of the circuit board 2,
This was placed in the case 4, and thereafter, a potting resin 5 made of urethane resin or the like was poured into an upper space of the circuit board 2 surrounded by the case 4 and the connector 3, and the circuit board 2 was covered with the potting resin 5. In the state.
The connector 3 attached to the circuit board 2 has
A coupler 6 (see FIG. 2) is attached so as to be freely inserted and removed.

More specifically, the connector 3 of this embodiment has two couplers A6 and B6 (the coupler B6 is not shown, but the structure is the same as the coupler A6. Therefore, the coupler A6 will be described in the following description). , Including the coupler B6), which can be arranged side by side on the left and right. A receiving port 7 for receiving the coupler 6 is formed on the upper surface, and the inside is open to the bottom wall 8 in space. Has become. In the space, there are provided a plurality of lead pins 18 extending straight through the bottom wall 8 in the vertical direction. On the outside where the receiving port 7 is formed, a groove 9 for fitting is formed around the receiving port 7 in a state where the receiving port 7 is circulated.
The groove 9 is formed so as to surround the outside of the connector portion 3a to form the waterproof wall 1.
0 is integrally formed. Note that a portion 19 protruding into the groove 9 from the outer surface of the connector portion 3a.
(See FIG. 1) is an outer fitting portion.

On the other hand, the coupler 6 has a coupler body 6a which can be inserted into the connector 3a through the receiving port 7.
And a fitting groove 11 into which the wall of the connector portion 3a can be inserted in close contact and a fitting wall 12 which can be inserted into the groove 9 of the connector 3 in close contact. The coupler body 6a is provided with contact portions (not shown) for contacting the lead pins 18 of the connector 3 to establish electrical continuity in correspondence with the respective lead pins 18. Further, each contact portion has The harness 13 is connected. A waterproof rubber ring 15 is mounted in the fitting groove 11.

In the electronic device 1, the receiving port 7 is directed upward, and the lead pin 18, which extends through the bottom wall 8 and extends straight to the rear side, is inserted into the through hole 14 of the circuit board 2 (see FIG. 2). And then fixed by soldering. In this state, the potting resin 5 is placed in the case 4 together with the circuit board 2 in the space above the circuit board 2 surrounded by the case 4 and the connector 3 and hardened. 3
Is formed with a waterproof wall 10, the potting resin 5 is stopped outside the waterproof wall 10, and does not enter the groove 9. When the coupler 6 is attached to the connector 3 attached to the electronic device 1 in this manner, the coupler body 6a is pressed against the connector 3 in correspondence with the receiving port 7. Then, the coupler body 6a
The fitting wall 12 is inserted into the groove 9 at the same time as is inserted into the connector portion 3a. Further, when inserted between predetermined positions, the waterproof rubber ring 15 mounted in the fitting groove 11 is brought into close contact with the upper surface of the connector portion 3a, and the space between the connector portion 3a and the coupler body 6a is formed. A sealing function is further added.

Therefore, according to the structure of this embodiment,
Since the connector 3 is provided around the waterproof wall 10 defining the groove 9 outside the receiving port 7, the potting resin 5 poured into the case 4 is stopped by the waterproof wall 10 and the connector portion 3 a It can be prevented from getting into the side. Also, when rainwater or the like invades the waterproof wall 10, it is received by the fitting groove 9. Further, since the intrusion of the potting resin 5 and the waterproofness are obtained, it is possible to use a straight connector in which the lead pins 18 extending straight from the bottom wall 8 with the receiving port 7 on the upper side are directly attached to the circuit board 2. As a result, the cost of the lead pins 18 can be reduced and the density of the lead pins 18 can be increased during mounting. In addition, the coupler 6 is provided with a fitting wall 12 which is inserted and fitted into the groove 9 of the connector 3 and a fitting groove 11 into which the connector portion 3a is inserted. 12 is fitted into the groove 9 on the connector 3 side, and the wall on the connector part 3a side is fitted into the fitting groove 11 on the coupler 6 side. Further, the waterproof rubber ring 15 is disposed in the fitting groove 11 on the coupler 6 side, and when the connector 3 is coupled to the coupler 6 side, the waterproof rubber ring 15 is connected via the waterproof rubber ring 15, so that more reliable waterproofing is achieved. can get.

[0016]

As described above, according to the present invention,
A connector excellent in waterproofness and the like and a waterproof connector device using this connector can be provided at low cost. Further, since a straight connector can be adopted, effects such as high-density mounting of electronic devices can be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a main configuration of an electronic apparatus to which the present invention is applied.

FIG. 2 is a perspective view showing a part of the electronic device in a cut away manner;

FIG. 3 is a perspective view schematically showing a configuration of a main part of an electronic device using a conventional technique.

FIG. 4 is a perspective view showing another structure of the conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic device 2 Circuit board 3 Connector 3a Connector part 4 Case 5 Potting resin 6 Coupler 7 Reception opening 9 Groove 10 Waterproof wall 11 Fitting groove 12 Fitting wall 18 Lead pin

Claims (4)

[Claims] 1. A connector for an electronic device in which a resin material is poured onto the board in the case after being mounted on a circuit board and assembled in a case, wherein the circuit board is provided with a receiving port facing upward. A connector mounted on a substrate and provided around a waterproof wall defining a fitting groove outside the receiving port. 2. The connector according to claim 1, wherein a straight pin extending straight is used as the lead pin. 3. A waterproof connector device for an electronic device in which a resin material is poured onto the board in the case after being mounted on a circuit board and incorporated in a case, wherein the receiving port faces upward. A connector provided around the waterproof wall defining a fitting groove outside the receiving port while being attached to the circuit board, and being fitted into the fitting groove of the connector by being inserted into the fitting groove. A connector provided around the outside of the coupling portion inserted into the receiving opening of the connector, the coupler comprising: 4. The waterproof connector device according to claim 3, wherein a straight pin extending straight is used as a lead pin of the connector.